Fix search, add test

pymispgalaxies/api.py

@@ -202,7 +202,7 @@ class Cluster(collections.Mapping):
 
     def search(self, query):
         matching = []
-        for v in self.values:
+        for v in self.values.values():
             if [s for s in v.searchable if query.lower() in s.lower()]:
                 matching.append(v)
         return matching

tests/tests.py

@@ -53,3 +53,6 @@ class TestPyMISPGalaxies(unittest.TestCase):
 
     def test_print(self):
         print(self.clusters)
+
+    def test_search(self):
+        self.assertIsNot(len(self.clusters.search('apt')), 0)